/*
Real-time Online/Offline Charging System (OCS) for Telecom & ISP environments
Copyright (C) ITsysCOM GmbH

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>
*/
package utils

import (
	"math"
	"net"
	"reflect"
	"testing"
	"time"

	"github.com/nyaruka/phonenumbers"
)

func TestDataConvertersConvertString(t *testing.T) {
	dcs := &DataConverters{}
	if rcv, err := dcs.ConvertString(EmptyString); err != nil {
		t.Error(err)
	} else if rcv != EmptyString {
		t.Errorf("Expecting: <%+q>, received: <%+q>", EmptyString, rcv)
	}
	if rcv, err := dcs.ConvertString("test"); err != nil {
		t.Error(err)
	} else if rcv != "test" {
		t.Errorf("Expecting: <test>, received: <%+q>", rcv)
	}
}

func TestDataConverterNewDataConverter(t *testing.T) {
	a, err := NewDataConverter(MetaDurationSeconds)
	if err != nil {
		t.Error(err)
	}
	b, err := NewDurationSecondsConverter(EmptyString)
	if err != nil {
		t.Error(err)
	}
	if !reflect.DeepEqual(a, b) {
		t.Error("Error reflect")
	}
	a, err = NewDataConverter(MetaDuration)
	if err != nil {
		t.Error(err)
	}
	b, err = NewDurationConverter(EmptyString)
	if err != nil {
		t.Error(err)
	}
	if !reflect.DeepEqual(a, b) {
		t.Error("Error reflect")
	}
	a, err = NewDataConverter(MetaDurationNanoseconds)
	if err != nil {
		t.Error(err)
	}
	b, err = NewDurationNanosecondsConverter(EmptyString)
	if err != nil {
		t.Error(err)
	}
	if !reflect.DeepEqual(a, b) {
		t.Error("Error reflect")
	}
	a, err = NewDataConverter(MetaRound)
	if err != nil {
		t.Error(err)
	}
	b, err = NewRoundConverter(EmptyString)
	if err != nil {
		t.Error(err)
	}
	if !reflect.DeepEqual(a, b) {
		t.Error("Error reflect")
	}
	a, err = NewDataConverter("*round:07")
	if err != nil {
		t.Error(err)
	}
	b, err = NewRoundConverter("7")
	if err != nil {
		t.Error(err)
	}
	if !reflect.DeepEqual(a, b) {
		t.Error("Error reflect")
	}
	if _, err = NewDataConverter(MetaMultiply); err == nil || err != ErrMandatoryIeMissingNoCaps {
		t.Error(err)
	}
	a, err = NewDataConverter("*multiply:3.3")
	if err != nil {
		t.Error(err)
	}
	b, err = NewMultiplyConverter("3.3")
	if err != nil {
		t.Error(err)
	}
	if !reflect.DeepEqual(a, b) {
		t.Error("Error reflect")
	}
	if _, err = NewDataConverter(MetaDivide); err == nil || err != ErrMandatoryIeMissingNoCaps {
		t.Error(err)
	}
	a, err = NewDataConverter("*divide:3.3")
	if err != nil {
		t.Error(err)
	}
	b, err = NewDivideConverter("3.3")
	if err != nil {
		t.Error(err)
	}
	if !reflect.DeepEqual(a, b) {
		t.Error("Error reflect")
	}
	if _, err = NewDataConverter(MetaLibPhoneNumber); err == nil || err.Error() != "unsupported *libphonenumber converter parameters: <>" {
		t.Error(err)
	}
	a, err = NewDataConverter("*libphonenumber:US")
	if err != nil {
		t.Error(err)
	}
	b, err = NewPhoneNumberConverter("US")
	if err != nil {
		t.Error(err)
	}
	if !reflect.DeepEqual(a, b) {
		t.Error("Error reflect")
	}
	if _, err := NewDataConverter("unsupported"); err == nil || err.Error() != "unsupported converter definition: <unsupported>" {
		t.Error(err)
	}

	hex, err := NewDataConverter(MetaString2Hex)
	if err != nil {
		t.Error(err)
	}
	exp := new(String2HexConverter)
	if !reflect.DeepEqual(hex, exp) {
		t.Errorf("Expected %+v received: %+v", exp, hex)
	}
	a, err = NewDataConverter(MetaIP2Hex)
	if err != nil {
		t.Fatal(err)
	}
	b = new(IP2HexConverter)
	if !reflect.DeepEqual(a, b) {
		t.Errorf("got %v, want %v", a, b)
	}
}

func TestNewDataConverterMustCompile(t *testing.T) {
	eOut, _ := NewDataConverter(MetaDurationSeconds)
	if rcv := NewDataConverterMustCompile(MetaDurationSeconds); rcv != eOut {
		t.Errorf("Expecting:  received: %+q", rcv)
	}

	t.Run("check panic", func(t *testing.T) {
		shouldPanic(t, NewDataConverterMustCompile)
	})
}

func shouldPanic(t *testing.T, f func(string) DataConverter) {
	t.Helper()
	defer func() {
		_ = recover()
	}()

	f("!£$%&/()=?123")
	t.Error("should have panicked")
}

func TestDataConverterNewDurationSecondsConverter(t *testing.T) {
	eOut := DurationSecondsConverter{}
	if rcv, err := NewDurationSecondsConverter("test"); err != nil {
		t.Error(err)
	} else if reflect.DeepEqual(rcv, eOut) {
		t.Errorf("Expected %+v received: %+v", eOut, rcv)
	}
}

func TestDataConverterDurationSecondsConverterConvert(t *testing.T) {
	mS := &DurationSecondsConverter{}
	if _, err := mS.Convert("string"); err.Error() != "time: invalid duration \"string\"" {
		t.Error(err)
	}
}

func TestDataConverterDurationNanosecondsConverterConvert(t *testing.T) {
	nS := &DurationNanosecondsConverter{}
	if _, err := nS.Convert("string"); err.Error() != "time: invalid duration \"string\"" {
		t.Error(err)
	}
}
func TestDataConverterNewRoundConverter(t *testing.T) {
	if _, err := NewRoundConverter("test"); err == nil || err.Error() != "*round converter needs integer as decimals, have: <test>" {
		t.Error(err)
	}
	if _, err := NewRoundConverter(":test"); err == nil || err.Error() != "*round converter needs integer as decimals, have: <>" {
		t.Error(err)
	}
	if _, err := NewRoundConverter("test:"); err == nil || err.Error() != "*round converter needs integer as decimals, have: <test>" {
		t.Error(err)
	}
	eOut := &RoundConverter{
		Method: ROUNDING_MIDDLE,
	}
	if rcv, err := NewRoundConverter(EmptyString); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(rcv, eOut) {
		t.Errorf("Expected %+v received: %+v", eOut, rcv)
	}
	eOut = &RoundConverter{
		Decimals: 12,
		Method:   ROUNDING_UP,
	}
	if rcv, err := NewRoundConverter("12:*up"); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(rcv, eOut) {
		t.Errorf("Expected %+v received: %+v", eOut, rcv)
	}
	eOut = &RoundConverter{
		Decimals: 12,
		Method:   ROUNDING_DOWN,
	}
	if rcv, err := NewRoundConverter("12:*down"); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(rcv, eOut) {
		t.Errorf("Expected %+v received: %+v", eOut, rcv)
	}
	eOut = &RoundConverter{
		Decimals: 12,
		Method:   ROUNDING_MIDDLE,
	}
	if rcv, err := NewRoundConverter("12:*middle"); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(rcv, eOut) {
		t.Errorf("Expected %+v received: %+v", eOut, rcv)
	}
	eOut = &RoundConverter{}
	if rcv, err := NewRoundConverter("12:*middle:wrong_length"); err == nil || err.Error() != "unsupported *round converter parameters: <12:*middle:wrong_length>" {
		t.Error(err)
	} else if !reflect.DeepEqual(rcv, nil) {
		t.Errorf("Expected %+v received: %+v", nil, rcv)
	}

}

func TestDataConverterRoundConverterConvert(t *testing.T) {
	rnd := &RoundConverter{}
	if rcv, err := rnd.Convert("string_test"); err == nil || err.Error() != `strconv.ParseFloat: parsing "string_test": invalid syntax` {
		t.Error(err)
	} else if !reflect.DeepEqual(rcv, nil) {
		t.Errorf("Expected %+v received: %+v", nil, rcv)
	}
	eOut := Round(18, rnd.Decimals, rnd.Method)
	if rcv, err := rnd.Convert(18); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(eOut, rcv) {
		t.Errorf("Expected %+v received: %+v", eOut, rcv)
	}
}

func TestDataConverterNewMultiplyConverter(t *testing.T) {
	if rcv, err := NewMultiplyConverter(EmptyString); err == nil || err != ErrMandatoryIeMissingNoCaps {
		t.Error(err)
	} else if !reflect.DeepEqual(rcv, nil) {
		t.Errorf("Expected %+v received: %+v", nil, rcv)
	}
	if rcv, err := NewMultiplyConverter("string_test"); err == nil || err.Error() != `strconv.ParseFloat: parsing "string_test": invalid syntax` {
		t.Error(err)
	} else if !reflect.DeepEqual(rcv, nil) {
		t.Errorf("Expected %+v received: %+v", nil, rcv)
	}
	eOut := &MultiplyConverter{Value: 0.7}
	if rcv, err := NewMultiplyConverter("0.7"); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(rcv, eOut) {
		t.Errorf("Expected %+v received: %+v", eOut, rcv)
	}
}

func TestDataConverterMultiplyConverterConvert(t *testing.T) {
	m := &MultiplyConverter{}
	if rcv, err := m.Convert(EmptyString); err == nil || err.Error() != `strconv.ParseFloat: parsing "": invalid syntax` {
		t.Error(err)
	} else if !reflect.DeepEqual(rcv, nil) {
		t.Errorf("Expected %+v received: %+v", nil, rcv)
	}
	if rcv, err := m.Convert("string_test"); err == nil || err.Error() != `strconv.ParseFloat: parsing "string_test": invalid syntax` {
		t.Error(err)
	} else if !reflect.DeepEqual(rcv, nil) {
		t.Errorf("Expected %+v received: %+v", nil, rcv)
	}
	if rcv, err := m.Convert(3); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(rcv, 0.0) {
		t.Errorf("Expected %+v received: %+v", 0, rcv)
	}

	m.Value = 2
	if rcv, err := m.Convert(3); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(rcv, 6.0) {
		t.Errorf("Expected %+v received: %+v", 0, rcv)
	}
}

func TestDataConverterNewDivideConverter(t *testing.T) {
	if rcv, err := NewDivideConverter(EmptyString); err == nil || err != ErrMandatoryIeMissingNoCaps {
		t.Error(err)
	} else if !reflect.DeepEqual(rcv, nil) {
		t.Errorf("Expected %+v received: %+v", nil, rcv)
	}
	if rcv, err := NewDivideConverter("string_test"); err == nil || err.Error() != `strconv.ParseFloat: parsing "string_test": invalid syntax` {
		t.Error(err)
	} else if !reflect.DeepEqual(rcv, nil) {
		t.Errorf("Expected %+v received: %+v", nil, rcv)
	}
	eOut := &DivideConverter{Value: 0.7}
	if rcv, err := NewDivideConverter("0.7"); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(eOut, rcv) {
		t.Errorf("Expected %+v received: %+v", eOut, rcv)
	}
}

func TestDataConverterDivideConverterConvert(t *testing.T) {
	m := DivideConverter{}
	if rcv, err := m.Convert("string_test"); err == nil || err.Error() != `strconv.ParseFloat: parsing "string_test": invalid syntax` {
		t.Error(err)
	} else if !reflect.DeepEqual(rcv, nil) {
		t.Errorf("Expected %+v received: %+v", nil, rcv)
	}
	eOut := math.Inf(1)
	if rcv, err := m.Convert("96"); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(eOut, rcv) {
		t.Errorf("Expected %+v received: %+v", eOut, rcv)
	}
	eOut = math.Inf(-1)
	if rcv, err := m.Convert("-96"); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(eOut, rcv) {
		t.Errorf("Expected %+v received: %+v", eOut, rcv)
	}
	m = DivideConverter{Value: 0.7}
	eOut = 137.14285714285714
	if rcv, err := m.Convert("96"); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(eOut, rcv) {
		t.Errorf("Expected %+v received: %+v", eOut, rcv)
	}
}

func TestDataConverterNewDurationConverter(t *testing.T) {
	nS := &DurationConverter{}
	eOut := time.Duration(0 * time.Second)
	if rcv, err := nS.Convert(EmptyString); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(eOut, rcv) {
		t.Errorf("Expected %+v received: %+v", eOut, rcv)
	}
	eOut = time.Duration(7 * time.Nanosecond)
	if rcv, err := nS.Convert(7); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(eOut, rcv) {
		t.Errorf("Expected %+v received: %+v", eOut, rcv)
	}
}

func TestDataConverterConvertFloatToSeconds(t *testing.T) {
	b, err := NewDataConverter(MetaDurationSeconds)
	if err != nil {
		t.Error(err.Error())
	}
	a, err := b.Convert(time.Duration(10*time.Second + 300*time.Millisecond))
	if err != nil {
		t.Error(err.Error())
	}
	expVal := 10.3
	if !reflect.DeepEqual(a, expVal) {
		t.Errorf("Expected %+v received: %+v", expVal, a)
	}
}

func TestDataConverterConvertDurNanoseconds(t *testing.T) {
	d, err := NewDataConverter(MetaDurationNanoseconds)
	if err != nil {
		t.Error(err.Error())
	}
	expVal := int64(102)
	if i, err := d.Convert(time.Duration(102)); err != nil {
		t.Error(err.Error())
	} else if expVal != i {
		t.Errorf("expecting: %d, received: %d", expVal, i)
	}
}

func TestDataConverterRoundConverterFloat64(t *testing.T) {
	b, err := NewDataConverter("*round:2")
	if err != nil {
		t.Error(err.Error())
	}
	expData := &RoundConverter{
		Decimals: 2,
		Method:   ROUNDING_MIDDLE,
	}
	if !reflect.DeepEqual(b, expData) {
		t.Errorf("Expected %+v received: %+v", expData, b)
	}
	val, err := b.Convert(2.3456)
	if err != nil {
		t.Error(err.Error())
	}
	expV := 2.35
	if !reflect.DeepEqual(expV, val) {
		t.Errorf("Expected %+v received: %+v", expV, val)
	}
}

//testRoundconv string / float / int / time

func TestDataConverterRoundConverterString(t *testing.T) {
	b, err := NewDataConverter("*round:2")
	if err != nil {
		t.Error(err.Error())
	}
	expData := &RoundConverter{
		Decimals: 2,
		Method:   ROUNDING_MIDDLE,
	}
	if !reflect.DeepEqual(b, expData) {
		t.Errorf("Expected %+v received: %+v", expData, b)
	}
	val, err := b.Convert("10.4295")
	if err != nil {
		t.Error(err.Error())
	}
	expV := 10.43
	if !reflect.DeepEqual(expV, val) {
		t.Errorf("Expected %+v received: %+v", expV, val)
	}
}

func TestDataConverterRoundConverterInt64(t *testing.T) {
	b, err := NewDataConverter("*round:2")
	if err != nil {
		t.Error(err.Error())
	}
	expData := &RoundConverter{
		Decimals: 2,
		Method:   ROUNDING_MIDDLE,
	}
	if !reflect.DeepEqual(b, expData) {
		t.Errorf("Expected %+v received: %+v", expData, b)
	}
	val, err := b.Convert(int64(10))
	if err != nil {
		t.Error(err.Error())
	}
	expV := 10.0
	if !reflect.DeepEqual(expV, val) {
		t.Errorf("Expected %+v received: %+v", expV, val)
	}
}

func TestDataConverterRoundConverterTime(t *testing.T) {
	b, err := NewDataConverter("*round:2")
	if err != nil {
		t.Error(err.Error())
	}
	expData := &RoundConverter{
		Decimals: 2,
		Method:   ROUNDING_MIDDLE,
	}
	if !reflect.DeepEqual(b, expData) {
		t.Errorf("Expected %+v received: %+v", expData, b)
	}
	val, err := b.Convert(time.Duration(123 * time.Nanosecond))
	if err != nil {
		t.Error(err.Error())
	}
	expV := 123.0
	if !reflect.DeepEqual(expV, val) {
		t.Errorf("Expected %+v received: %+v", expV, val)
	}
}

func TestDataConverterMultiplyConverter(t *testing.T) {
	eMpl := &MultiplyConverter{1024.0}
	m, err := NewDataConverter("*multiply:1024.0")
	if err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(eMpl, m) {
		t.Errorf("expecting: %+v, received: %+v", eMpl, m)
	}
	expOut := 2048.0
	if out, err := m.Convert(time.Duration(2)); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(expOut, out) {
		t.Errorf("expecting: %+v, received: %+v", expOut, out)
	}
	expOut = 1536.0
	if out, err := m.Convert(1.5); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(expOut, out) {
		t.Errorf("expecting: %+v, received: %+v", expOut, out)
	}
}

func TestDataConverterDivideConverter(t *testing.T) {
	eDvd := &DivideConverter{1024.0}
	d, err := NewDataConverter("*divide:1024.0")
	if err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(eDvd, d) {
		t.Errorf("expecting: %+v, received: %+v", eDvd, d)
	}
	expOut := 2.0
	if out, err := d.Convert(time.Duration(2048)); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(expOut, out) {
		t.Errorf("expecting: %+v, received: %+v", expOut, out)
	}
	expOut = 1.5
	if out, err := d.Convert(1536.0); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(expOut, out) {
		t.Errorf("expecting: %+v, received: %+v", expOut, out)
	}
	if _, err := eDvd.Convert("strionmg"); err == nil || err.Error() != `strconv.ParseFloat: parsing "strionmg": invalid syntax` {
		t.Error(err)
	}
}

func TestDataConverterDurationConverter(t *testing.T) {
	d, err := NewDataConverter(MetaDuration)
	if err != nil {
		t.Error(err.Error())
	}
	expVal := time.Duration(10 * time.Second)
	if i, err := d.Convert(10000000000.0); err != nil {
		t.Error(err.Error())
	} else if expVal != i {
		t.Errorf("expecting: %d, received: %d", expVal, i)
	}
	if i, err := d.Convert(10000000000); err != nil {
		t.Error(err.Error())
	} else if expVal != i {
		t.Errorf("expecting: %d, received: %d", expVal, i)
	}
	if i, err := d.Convert(time.Duration(10 * time.Second)); err != nil {
		t.Error(err.Error())
	} else if expVal != i {
		t.Errorf("expecting: %d, received: %d", expVal, i)
	}
	if i, err := d.Convert("10s"); err != nil {
		t.Error(err.Error())
	} else if expVal != i {
		t.Errorf("expecting: %d, received: %d", expVal, i)
	}
}

func TestDataConverterPhoneNumberConverter(t *testing.T) {
	// test for error
	if rcv, err := NewDataConverter("*libphonenumber:US:1:2:error"); err == nil || err.Error() != "unsupported *libphonenumber converter parameters: <US:1:2:error>" {
		t.Error(err)
	} else if !reflect.DeepEqual(nil, rcv) {
		t.Errorf("Expecting: %+v, received: %+v", nil, rcv)
	}
	if rcv, err := NewDataConverter("*libphonenumber:US:X"); err == nil || err.Error() != `strconv.Atoi: parsing "X": invalid syntax` {
		t.Error(err)
	} else if !reflect.DeepEqual(nil, rcv) {
		t.Errorf("Expecting: %+v, received: %+v", nil, rcv)
	}
	eLc := &PhoneNumberConverter{CountryCode: "9786679", Format: phonenumbers.NATIONAL}
	if _, err := eLc.Convert("8976wedf"); err == nil || err.Error() != "invalid country code" {
		t.Errorf("Expecting: 'invalid country code', received: %+v", err)
	}

	// US/National
	eLc = &PhoneNumberConverter{CountryCode: "US", Format: phonenumbers.NATIONAL}
	d, err := NewDataConverter("*libphonenumber:US")
	if err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(eLc, d) {
		t.Errorf("expecting: %+v, received: %+v", eLc, d)
	}
	// simulate an E164 number and Format it into a National number
	phoneNumberConverted, err := d.Convert("+14431234567")
	if err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(phoneNumberConverted, "(443) 123-4567") {
		t.Errorf("expecting: %+v, received: %+v", "(443) 123-4567", phoneNumberConverted)
	}
	//US/International
	eLc = &PhoneNumberConverter{CountryCode: "US", Format: phonenumbers.INTERNATIONAL}
	d, err = NewDataConverter("*libphonenumber:US:1")
	if err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(eLc, d) {
		t.Errorf("expecting: %+v, received: %+v", eLc, d)
	}
	// simulate an E164 number and Format it into a National number
	phoneNumberConverted, err = d.Convert("+14431234567")
	if err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(phoneNumberConverted, "+1 443-123-4567") {
		t.Errorf("expecting: %+v, received: %+v", "+1 443-123-4567", phoneNumberConverted)
	}
	// DE/International
	eLc = &PhoneNumberConverter{CountryCode: "DE", Format: phonenumbers.INTERNATIONAL}
	d, err = NewDataConverter("*libphonenumber:DE:1")
	if err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(eLc, d) {
		t.Errorf("expecting: %+v, received: %+v", eLc, d)
	}
	phoneNumberConverted, err = d.Convert("6502530000")
	if err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(phoneNumberConverted, "+49 6502 530000") {
		t.Errorf("expecting: %+v, received: %+v", "+49 6502 530000", phoneNumberConverted)
	}
	// DE/E164
	eLc = &PhoneNumberConverter{CountryCode: "DE", Format: phonenumbers.E164}
	d, err = NewDataConverter("*libphonenumber:DE:0")
	if err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(eLc, d) {
		t.Errorf("expecting: %+v, received: %+v", eLc, d)
	}
	phoneNumberConverted, err = d.Convert("6502530000")
	if err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(phoneNumberConverted, "+496502530000") {
		t.Errorf("expecting: %+v, received: %+v", "+496502530000", phoneNumberConverted)
	}
}

func TestDataConverterHexConvertor(t *testing.T) {
	hx := IP2HexConverter{}
	val := "127.0.0.1"
	expected := "0x7f000001"
	if rpl, err := hx.Convert(val); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(expected, rpl) {
		t.Errorf("expecting: %+v, received: %+v", expected, rpl)
	}
	val2 := net.ParseIP("127.0.0.1")
	if rpl, err := hx.Convert(val2); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(expected, rpl) {
		t.Errorf("expecting: %+v, received: %+v", expected, rpl)
	}

	val3 := []byte("127.0.0.1")
	if rpl, err := hx.Convert(val3); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(expected, rpl) {
		t.Errorf("expecting: %+v, received: %+v", expected, rpl)
	}

	val = ""
	expected = ""
	if rpl, err := hx.Convert(val); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(expected, rpl) {
		t.Errorf("expecting: %+v, received: %+v", expected, rpl)
	}

	val = "62.87.114.244"
	expected = "0x3e5772f4"
	if rpl, err := hx.Convert(val); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(expected, rpl) {
		t.Errorf("expecting: %+v, received: %+v", expected, rpl)
	}
}

func TestDataConverterStringHexConvertor(t *testing.T) {
	hx := new(String2HexConverter)
	val := "127.0.0.1"
	expected := "0x3132372e302e302e31"
	if rpl, err := hx.Convert(val); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(expected, rpl) {
		t.Errorf("expecting: %+v, received: %+v", expected, rpl)
	}

	val3 := []byte("127.0.0.1")
	if rpl, err := hx.Convert(val3); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(expected, rpl) {
		t.Errorf("expecting: %+v, received: %+v", expected, rpl)
	}

	val = ""
	expected = ""
	if rpl, err := hx.Convert(val); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(expected, rpl) {
		t.Errorf("expecting: %+v, received: %+v", expected, rpl)
	}

	val3 = []byte{0x94, 0x71, 0x02, 0x31, 0x01, 0x59}
	expected = "0x947102310159"
	if rpl, err := hx.Convert(val3); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(expected, rpl) {
		t.Errorf("expecting: %+v, received: %+v", expected, rpl)
	}

	val3 = []byte{0x88, 0x90, 0xa6}
	expected = "0x8890a6"
	if rpl, err := hx.Convert(val3); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(expected, rpl) {
		t.Errorf("expecting: %+v, received: %+v", expected, rpl)
	}
}

func TestDataConverterConvertString(t *testing.T) {
	tests := []struct {
		name string
		arg  string
		want string
		err  bool
	}{
		{
			name: "check error",
			arg:  "!£$%&/()=?^",
			want: "",
			err:  true,
		},
		{
			name: "check error",
			arg:  "1.5",
			want: "1.5",
			err:  false,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			dc := DataConverters{&RoundConverter{}}
			rcv, err := dc.ConvertString(tt.arg)

			if tt.err {
				if err == nil {
					t.Error("was expecting an error but didnt get one")
				}
			} else {
				if err != nil {
					t.Errorf("was not expecting an error %s", err)
				}
			}

			if tt.want != rcv {
				t.Errorf("received %v, expected %v", rcv, tt.want)
			}
		})
	}
}